MBR (Membrane Bioreactor) integrated sewage treatment device with built-in pump and backwashing function

Abstract

The utility model relates to an MBR integrated sewage treatment device with a built-in pump and a backwashing function, which comprises an anoxic tank, an aerobic tank, an MBR tank, a clean water tank, a water inlet pipeline, a sludge reflux pipeline, a weir water baffle, a sludge reflux pump, an aeration pipeline, an aerobic tank aeration device, an MBR tank aeration device, an MBR membrane component, an MBR suction pipeline, a submersible MBR suction pump, an MBR water production pipeline, a submersible MBR backwashing pump and an MBR backwashing pipeline, the device comprises an MBR backwashing electromagnetic valve, an MBR water producing electromagnetic valve, an MBR water producing port, a clean water tank water inlet pipeline, a mechanical liquid level switch and a compressed air access port. According to the device disclosed by the invention, a pump required by the MBR system and a backwashing device of the MBR system are all integrated in integrated equipment, so that an external pipeline and corresponding installation construction quantity are simplified.

Description

Technical Field

[0001] The present invention relates to an integrated sewage treatment device, in particular to an MBR integrated sewage treatment device with a built-in pump and backwashing function. Background Art

[0002] The MBR integrated sewage treatment device has many equipment accessories, and the integration of process equipment needs to be improved to facilitate the installation and simplification of equipment use. This type of equipment is widely used in small sewage treatment projects. Domestic sewage mainly comes from daily water, such as residential, school, hospital, public places and industrial enterprise toilets. The sewage treatment equipment in these places is rarely equipped with professional technicians to operate, so integrating common functions can not only reduce the footprint of the equipment, but also reduce human operation and intervention. Therefore, it is necessary to improve the existing integrated sewage treatment equipment to meet the current requirements of sewage treatment.

[0003] CN 219002626 U discloses a utility model patent for an MBR backwash system, which reduces investment and energy consumption of the MBR backwash system. However, the disadvantage is that the pump unit and the backwash water tank cannot be integrated inside the equipment. If the height difference is used to achieve the cleaning effect of the MBR membrane, the height of the backwash water tank needs to be extremely high, which causes great difficulties in the operation and maintenance of the equipment and the connection of the pipelines.

[0004] CN 220056576 U discloses a utility model patent for an MBR integrated reclaimed water device, in which a filter screen and a separator are added to the integrated device, which reduces the entry of large-volume pollutants and protects the MBR membrane assembly. However, the disadvantage is that there is no backwash device for the MBR membrane assembly. Adding an MBR membrane backwash device can greatly protect the membrane flux of the MBR and reduce the clogging problem of the MBR membrane by sludge and impurities.

[0005] In view of the shortcomings of the prior art, the purpose of the present invention is to provide an MBR integrated sewage treatment device with a built-in pump and backwashing function, which integrates all the necessary pumps and backwashing devices of the MBR membrane system into the integrated equipment, simplifies the external pipelines, reduces the floor space and construction workload, and utilizes all submersible water pumps to avoid the pipeline evacuation problem that is prone to occur in MBR. Summary of the invention

[0006] The technical solution of the present invention to achieve the above-mentioned purpose is: an MBR integrated sewage treatment device with a built-in pump and backwashing function, comprising an anoxic tank, an aerobic tank, an MBR tank, a clean water tank, a water inlet pipeline, a sludge return pipeline, a baffle waterway, a sludge return pump, an aeration pipeline, an aerobic tank aeration device, an MBR tank aeration device, an MBR membrane assembly, an MBR suction pipeline, a submersible MBR suction pump, an MBR water production pipeline, a submersible MBR backwash pump, an MBR backwash pipeline, an MBR backwash solenoid valve, an MBR water production solenoid valve, an MBR water production port, a clean water tank water inlet pipeline, a mechanical liquid level switch, and a compressed air inlet;

[0007] Among them, the MBR integrated sewage treatment device with built-in backwash function is composed of anoxic tank, aerobic tank, MBR tank and clear water tank in sequence;

[0008] Sewage enters the integrated device from the water inlet pipe;

[0009] The interior of the anoxic pool is connected to the aerobic pool through holes;

[0010] The interior of the aerobic pool is connected to the MBR pool through a baffle waterway;

[0011] An aerobic tank aeration device is provided inside the aerobic tank, and the aerobic tank aeration device is connected to the compressed air inlet through an aeration pipeline;

[0012] Inside the MBR tank, there is a sludge return pump, which returns the sludge to the anoxic tank through the sludge return pipeline;

[0013] Inside the MBR pool, an MBR pool aeration device is provided, and the MBR pool aeration device is connected to the compressed air inlet through an aeration pipeline;

[0014] Inside the MBR pool, there is an MBR membrane assembly;

[0015] The MBR membrane assembly is connected to the submersible MBR suction pump through the MBR suction pipeline, and the submersible MBR suction pump is connected to the MBR water outlet through the MBR water production pipeline;

[0016] Inside the clean water tank, a mechanical liquid level switch is installed, which is connected to the MBR water production pipeline through the clean water tank inlet pipeline;

[0017] Inside the clean water tank, a submersible MBR backwash pump is provided, and the submersible MBR backwash pump is connected to the MBR membrane assembly through the MBR backwash pipeline;

[0018] An MBR water production solenoid valve is provided on the MBR water production pipeline, and the MBR water production solenoid valve is opened and closed synchronously with the submersible MBR suction pump;

[0019] An MBR backwash solenoid valve is provided on the MBR backwash pipeline, and the MBR backwash solenoid valve is opened and closed synchronously with the submersible MBR backwash pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings.

[0021] Figure 1 It is a structural schematic diagram of an MBR integrated sewage treatment device with a built-in pump and backwashing function according to the present invention.

[0022] Among them: 1-anoxic tank, 2-aerobic tank, 3-MBR tank, 4-clean water tank, 5-water inlet pipeline, 6-sludge return pipeline, 7-baffle waterway, 8-sludge return pump, 9-aeration pipeline, 10-aeration device for aerobic tank, 11-aeration device for MBR tank, 12-MBR membrane assembly, 13-MBR suction pipeline, 14-submersible MBR suction pump, 15-MBR water production pipeline, 16-submersible MBR backwash pump, 17-MBR backwash pipeline, 18-MBR backwash solenoid valve, 19-MBR water production solenoid valve, 20-MBR water production port, 21-clean water tank inlet pipeline, 22-mechanical liquid level switch, 23-compressed air inlet. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0024] See also Figure 1 The present invention provides a technical solution: an MBR integrated sewage treatment device with a built-in pump and backwashing function, comprising an anoxic tank 1, an aerobic tank 2, an MBR tank 3, a clean water tank 4, a water inlet pipeline 5, a sludge return pipeline 6, a baffle waterway 7, a sludge return pump 8, an aeration pipeline 9, an aerobic tank aeration device 10, an MBR tank aeration device 11, an MBR membrane assembly 12, an MBR suction pipeline 13, a submersible MBR suction pump 14, an MBR water production pipeline 15, a submersible MBR backwash pump 16, an MBR backwash pipeline 17, an MBR backwash solenoid valve 18, an MBR water production solenoid valve 19, an MBR water production port 20, a clean water tank water inlet pipeline 21, a mechanical liquid level switch 22, and a compressed air inlet 23.

[0025] Among them, the MBR integrated sewage treatment device with built-in backwash function is composed of anoxic tank 1, good breeding tank 2, MBR tank 3, and clear water tank 4 in sequence;

[0026] Sewage enters the integrated device from the water inlet pipe 5;

[0027] The interior of the anoxic pool 1 is connected to the aerobic pool 2 through holes;

[0028] The interior of the aerobic pool 2 is connected to the MBR pool 3 via a baffle waterway 7;

[0029] Inside the aerobic pool 2, an aerobic pool aeration device 10 is provided, and the aerobic pool aeration device 10 is connected to the compressed air inlet 23 through an aeration pipeline 9;

[0030] Inside the MBR tank 3, a sludge return pump 8 is provided, and the sludge return pump 8 returns the sludge to the anoxic tank 1 through the sludge return pipeline 6;

[0031] Inside the MBR pool 3, an MBR aeration device 11 is provided, and the MBR aeration device 11 is connected to the compressed air inlet 23 through an aeration pipeline 9;

[0032] Inside the MBR pool 3, an MBR membrane assembly 12 is provided;

[0033] The MBR membrane assembly 12 is connected to the submersible MBR suction pump 14 through the MBR suction pipeline 13, and the submersible MBR suction pump 14 is connected to the MBR water outlet 20 through the MBR water production pipeline 15;

[0034] Inside the clean water tank 4, a mechanical liquid level switch 22 is provided, and the mechanical liquid level switch 22 is connected to the MBR water production pipeline 15 through the clean water tank water inlet pipeline 21;

[0035] Inside the clean water tank 4, a submersible MBR backwash pump 16 is provided, and the submersible MBR backwash pump 16 is connected to the MBR membrane assembly 12 through an MBR backwash pipeline 17;

[0036] An MBR water production solenoid valve 19 is provided on the MBR water production pipeline 15, and the MBR water production solenoid valve 19 is opened and closed synchronously with the submersible MBR suction pump 14;

[0037] An MBR backwash solenoid valve 18 is provided on the MBR backwash pipeline 17 , and the MBR backwash solenoid valve 18 is opened and closed synchronously with the submersible MBR backwash pump 16 .

[0038] The above specific implementation methods further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An MBR integrated sewage treatment device with built-in pump and backwash function, It is characterized in that Including anoxic tank, aerobic tank, MBR tank, clean water tank, water inlet pipeline, sludge return pipeline, baffle waterway, sludge return pump, aeration pipeline, aerobic tank aeration device, MBR tank aeration device, MBR membrane assembly, submersible MBR suction pipeline, submersible MBR suction pump, MBR water production pipeline, submersible MBR backwash pump, MBR backwash pipeline, MBR backwash solenoid valve, MBR water production solenoid valve, MBR water production port, clean water tank water inlet pipeline, mechanical liquid level switch, compressed air inlet; Wherein, the MBR integrated sewage treatment device with built-in backwash function is composed of the anoxic tank, the aerobic tank, the MBR tank, and the clean water tank in sequence; Sewage enters the integrated device from the water inlet pipeline; The interior of the anoxic pool is connected to the aerobic pool through holes; The interior of the aerobic pool is connected to the MBR pool through the baffle waterway; The aerobic pool aeration device is provided inside the aerobic pool, and the aerobic pool aeration device is connected to the compressed air inlet through the aeration pipeline; Inside the MBR tank, a sludge return pump is provided, and the sludge return pump returns the sludge to the anoxic tank through the sludge return pipeline; Inside the MBR pool, the MBR pool aeration device is provided, and the MBR pool aeration device is connected to the compressed air inlet through the aeration pipeline; The MBR membrane assembly is arranged inside the MBR pool; The MBR membrane assembly is connected to the submersible MBR suction pump via the MBR suction pipeline, and the submersible MBR suction pump is connected to the MBR water outlet via the MBR water production pipeline; Inside the clean water tank, the mechanical liquid level switch is provided, and the mechanical liquid level switch is connected to the MBR water production pipeline through the clean water tank water inlet pipeline; Inside the clean water tank, the submersible MBR backwash pump is provided, and the submersible MBR backwash pump is connected to the MBR membrane assembly through the MBR backwash pipeline; The MBR water production pipeline is provided with the MBR water production solenoid valve, and the MBR water production solenoid valve is opened or closed synchronously with the submersible MBR suction pump; The MBR backwashing solenoid valve is arranged on the MBR backwashing pipeline, and the MBR backwashing solenoid valve is opened or closed synchronously with the submersible MBR backwashing pump.

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